The heights of adult women in the general Turkish population follow a normal distribution with mean 164 cm and standard deviation 8 cm. A fan of volleyball with a degree in statistics wants to check if heights of adult female volleyball players are less variable than heights in the general population. The fan collected height data for 61 female volleyball players and found that they had an average height of 190 cm, with a standard deviation of 5 cm. We can assume that heights are normally distributed. a. Analyze the real-life problem and identify the parameter that needs to be estimated, in order to address it. For a 95% confidence level, determine the two critical values used in building the confidence interval for that parameter. (Round to two decimal places.) Lower critical value - Upper critical value - (Round to three decimal places.) b. Construct the confidence interval for the population parameter, using the confidence level, specified in b. Lower boundary =| Upper boundary- (Round to two decimal places.)

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Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.